color.h

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#ifndef _DRAW_COLOR_H_
#define _DRAW_COLOR_H_

typedef struct {
  float a; 
  float r; 
  float g; 
  float b; 
} draw_color_t;

typedef unsigned int draw_argb_t;

draw_argb_t draw_color_float_to_argb(const draw_color_t * col);

draw_argb_t draw_color_4float_to_argb(const float a, const float r,
                                      const float g, const float b);

void draw_color_argb_to_float(draw_color_t * col, const draw_argb_t argb);

#define DRAW_ARGB(A,R,G,B) \
 (((int)(A)<<24)|\
 ((int)(R)<<16)|\
 ((int)(G)<<8)|\
 (int)(B))

#define DRAW_ARGB_A(ARGB) ((draw_argb_t)(ARGB)>>24)

#define DRAW_ARGB_R(ARGB) (((ARGB)>>16)&255)

#define DRAW_ARGB_G(ARGB) (((ARGB)>>8)&255)

#define DRAW_ARGB_B(ARGB) ((ARGB)&255)

#define DRAW_ARGBF(A,R,G,B) \
 DRAW_COLOR_ARGB(A*255.0f,R*255.0f,G*255.0f,B*255.0f)

void draw_color_clip(draw_color_t *d);

void draw_color_neg(draw_color_t *d);

void draw_color_clip3(draw_color_t *d, const float min, const float max);

void draw_color_add(draw_color_t *d,
                    const draw_color_t *a, const draw_color_t *b);

void draw_color_add_clip(draw_color_t *d,
                         const draw_color_t *a, const draw_color_t *b);

void draw_color_mul_clip(draw_color_t *d,
                         const draw_color_t *a, const draw_color_t *b);

void draw_color_mul(draw_color_t *d,
                    const draw_color_t *a, const draw_color_t *b);

void draw_color_scale(draw_color_t *d,
                      const draw_color_t *a, const float b);


#endif /* #define _DRAW_COLOR_H_ */

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dcplaya documentation version 1.2

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